If she's lively she's fine...

My dd is 3.4 years and weighs the same as my ds who is 15 months! They both weigh 12kg. My dd is not a big one when it comes to food. She'll happily drink more than she'll eat. If I make her food she doesn't eat it, seems for days, I have tubs of fruit, cheese, finger food etc in the fridge for her to get at whenever she is hungry. She definately goes to the cupboard and asks for *yummies* when she is hungry, but she's never fitted in the MCHN charts and has at one stage been considered under-weight. She is always running around, is barely ill, maybe just the sniffles at season change and sleeps well at night.

Let your little Charlotte guide you and never mind what the charts say and if you can ignore the *under weight* comments from other people. You know your little miss best and yes do seek medical advice if she is unwell and unlively as then there surely is a problem.